CN107851528A - Electric assembly - Google Patents
Electric assembly Download PDFInfo
- Publication number
- CN107851528A CN107851528A CN201680044379.3A CN201680044379A CN107851528A CN 107851528 A CN107851528 A CN 107851528A CN 201680044379 A CN201680044379 A CN 201680044379A CN 107851528 A CN107851528 A CN 107851528A
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- CN
- China
- Prior art keywords
- electric current
- paths
- switch
- electric
- reversing arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/548—Electromechanical and static switch connected in series
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
- H02J2003/365—Reducing harmonics or oscillations in HVDC
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
A kind of electric assembly for being used in electrical system is provided.The electrically assembly includes DC paths.The DC paths include：DC transmission of electricity media；And electric current reversing arrangement (212), the electric current reversing arrangement (212) includes switch element (214) and energy absorbing element (216), the electric current that the switch element (214) is arranged to permit flowing through the DC paths in use flows through the switch element (214), and the energy absorbing element (216) is bypassed simultaneously, wherein described electrically assembly further comprises control unit (220), the switch of the switch element (214) is controlled for selectivity so that the electric current directly is commutated into the energy absorbing element (216) from the switch element (214), to increase the voltage drop as obtained by caused by the flowing of the direct current in the DC paths as connecting the electric current reversing arrangement, and the electric current flowing that thus resistance passes through the DC paths.
Description
Technical field
The present invention relates to a kind of electrically assembly and a kind of electrical system, more particularly to a kind of HVDC (HVDC) power transmission network
Network.
Background technology
Electrical system may include the power supply that such as battery of load is connected to via one or more current－carrying conductors, or use load
Multiple power supplys of the network connection of current conductor to multiple loads.
The example of electrical system is the DC power networks for needing the multi-terminal of HVDC converter to interconnect, and can be used be connected electrically in whereby
Two or more HVDC converters together exchange power on DC sides.Each HVDC converter serve as source or reservoir with
DC power networks are maintained while exchanging power on demand is always input to power output balance.DC power networks depend on DC power transmission lines or electricity
The network of cable come realize the multi-terminal of HVDC converter interconnect.
The content of the invention
According to the first aspect of the invention, there is provided a kind of electric assembly for being used in electrical system, it is described electric
Assembly includes DC paths, and the DC paths include：
DC transmission of electricity media；With
Electric current reversing arrangement, the electric current reversing arrangement include switch element and energy absorbing element, the switch element
The electric current for being arranged to permit flowing through the DC paths in use flows through the switch element and inhaled simultaneously around the energy
Receive element,
Wherein described electrically assembly further comprises control unit, and the switch of the switch element is controlled for selectivity,
The electric current is directly commutated into the energy absorbing element from the switch element, to increase by by connecting the electric current
Gained voltage drop caused by the flowing of the direct current in the DC paths of reversing arrangement, and thus resist the electric current and pass through the DC
The flowing in path.
DC transmission of electricity media can be any medium that electric power can be transmitted between two or more electrical equipments.This is situated between
Matter can be but not limited to seabed DC power transmission cables, aerial DC power transmission lines or cable and underground DC power transmission cables.
Electric current causes to change in DC transmission of electricity media and associated DC electrical systems by the flowing in the DC paths
The voltage drop of the flowing of electric current.This change of the flowing of electric current can cause the DC transmissions of electricity medium or connected any other
The defeated dielectric overloads of DC, i.e. the DC transmission of electricity media or connected any other DC can be made to transmit electricity medium beyond it
Operated in the case of rated condition.
The offer of electric current reversing arrangement and control unit in electric assembly makes to flow through DC paths and thus flows through switch member
The electric current of part can directly commutate to energy absorbing element.Flow through the electric current in the DC paths from switch element to energy absorbing element
Commutation cause DC paths apparent resistance increase, this has the flowing and thus partly or completely of the electric current in resistance DC paths
(or shunting) electric current is rebooted entirely to the effect in one or more of associated DC electrical systems other DC transmission paths
Should, therefore avoid undesirable effect as caused by the defeated dielectric overloads of DC.
It will be appreciated that, electric current reversing arrangement and electric assembly are not configured as that the electric current for flowing through DC paths can be destroyed, i.e. electricity
Flow reversing arrangement or electrically total Chengdu is not breaker.Thus, there is no for any in electric current reversing arrangement or its component
The individual requirement that there is high voltage-rated so that itself or electric assembly destroy the electric current for flowing through DC paths.
Replace, electric current reversing arrangement is preferably configured inhale energy with rated voltage, the rated voltage
The voltage drop as obtained by caused by the flowing in DC paths of the direct current as connecting electric current reversing arrangement can be increased by receiving element, and thus
Resist flowing of the electric current by DC paths.
For example, in work rated voltage and the DC electrical systems of 1.5kA full load rated current with 320kV
In, DC transmissions of electricity medium can the work rated voltage with 200km length, 1kA work rated current and 320kV.This causes
DC transmission of electricity media have substantially 2.4 Ω resistance, and this provides (under defeated dielectric rated full load for DC) substantially 2.4kV's
Voltage drop, this be it is determined that the present invention electric current reversing arrangement rated voltage during principal element.In these cases,
The exemplary rated voltage of electric current reversing arrangement can be 2kV to 4kV, and its dielectric work rated voltage more defeated than DC is small by substantially two
The individual order of magnitude.
The configuration of the rated voltage of electric current reversing arrangement in this way is not only permitted using relatively small and inexpensive electric current
Reversing arrangement, and when compared with the total losses in electrical system, cause the insignificant loss in electric current reversing arrangement.
In the electric assembly of the present invention, DC paths can further comprise：It is connected to the defeated dielectric mechanical switch of DC；With
The controller that selectivity operation mechanical switch is configured to so that DC transmission of electricity media to be disconnected from circuit.Described control unit can be compiled
Journey is with the switch of selective controlling switch element so that electric current directly is commutated into energy absorbing element from switch element thus to compel
The electric current in DC transmission of electricity media is dropped to allowance and operate mechanical switch in controller so that DC's medium to be transmitted electricity to before circuit disconnection
Safely disconnect the value of mechanical switch.
Described control unit can be programmed to the switch of selective controlling switch element with by electric current directly from switch element
Commutate to energy absorbing element and operate mechanical switch in controller thus to force the electric current in DC transmission of electricity media to drop to allowance
So that DC transmission of electricity media are disconnected into the preceding value that mechanical switch is disconnected without arc from circuit.
This causes the improved operation of mechanical switch so that DC media of transmitting electricity to be disconnected from circuit, this be due to be not present for
The demand of the formation of electric arc in mechanical switch.This not only permits the reduction of the load of mechanical switch, and allows mechanical switch
More simple designs.
The formation for the electric arc that the alternative solution of the present invention will be depended in mechanical switch, wherein arc voltage provide anti-electricity
Kinetic potential (EMF) is to resist flowing of the electric current by DC paths.The second alternative solution of the present invention will be with mechanical switch in parallel
Each in resonance circuit and surge arrester is connected, wherein in the formation triggering resonance circuit of the electric arc in mechanical switch
Resonance, and wherein back-EMF is to be produced after arc extinction by surge arrester.In two alternative solutions, mechanical switch is necessary
It is subjected to some milliseconds of arcing, wherein peak value arc current reaches twice of the value of the electric current of commutation.Arcing is not only
Substantial amounts of heat is produced, and causes the spot corrosion of the surface area contact of mechanical switch.Therefore, design needs to handle arcing
The mechanical switch of load is operable difficult and expensive with the mechanical switch disconnected under without arc condition than designing.
Control unit can be programmed to the switch of selective controlling switch element so that electric current directly to be commutated from switch element
To energy absorbing element, thus to operate DC paths of decaying before mechanical switch is disconnected with medium that DC transmits electricity from circuit in controller
Present in any oscillation of power.
This causes the improved operation of mechanical switch, and so that DC is transmitted electricity into medium than circuit disconnection, this is due to reduce indirectly
The ability that electric current in DC paths will hinder mechanical switch safely to disconnect in addition to decay it is any present in DC paths
Oscillation of power.When the situation of the flowing of the electric power in the associated DC electrical systems without prejudice to for example netted DC electrical systems
It is lower by electric current be reduced to zero it is difficult and/or unrealistic when, this can be particularly advantageous.
Also, realize electric current directly changing from switch element to energy absorbing element by configuring electric current reversing arrangement
To, electric assembly can quick response reduce the demand of the electric current in DC paths, for example, the faulty feelings in DC transmits electricity medium
Under condition.This reduces again is transmitting electricity medium from the time delay in circuit disconnection process by DC.
The requirement that DC transmission of electricity media disconnect from circuit can also be caused in the case of non-faulting, non-faulting situation may include example
Such as the DC transmission of electricity media protections of transmission security reason or the operational circumstances of isolation.
Therefore enable the coordinated manipulation of electric current reversing arrangement and mechanical switch according to the configuration of the electrical system of the present invention
DC is transmitted electricity into medium from circuit disconnection, while minimally influences the remainder in electrical system, therefore is permitted in electrical system
Remainder continue normal service in the case of unbroken.
The alternative solution of the present invention will be to disconnect DC breakers to be interrupted after detecting failure and identifying its position
The flowing of electric current in faulty DC transmissions of electricity medium.Although the use of DC breakers is permitted isolating faulty DC transmissions of electricity medium
To allow the remainder in electrical system to continue their operations with, but when compared with the electric assembly of the present invention, it is currently available that
DC breakers tend to relatively large, heavy and expensive.
Another alternative solution of the present invention by operating associated converter by stop the flowing of electric power, or passes through
If associated converter belongs to non-blocking type, then disconnects the one or more AC connected between external source and converter
Breaker, come the flowing in stopping electric power from one or more external sources to electrical system.This finally allows faulty DC
Electric current in transmission of electricity medium is reduced to zero, and thus allows the remainder in electrical system returning to normal service.However,
Electric current by interim in the form of the energy of " capture " in the system inductance in DC electrical systems, and continue for electric current by
Dissipation loss in DC electrical systems and untill decaying.The electric current to be circulated in DC electrical systems generally takes hundreds of milliseconds of decay
To the sufficiently low value reset that will permit transmitting electricity.Decay in circulating current disconnects and re-closed with being associated in
The combination for the time that the delay of the breaker connected between external source and converter needs can cause the transmission in electrical system
The harmonic compoment of capacity loss.This will have to the other electrical systems and its component for being connected to the electrical system again does not conform to need
The consequence wanted.
Another alternative solution of the present invention will be configuration electrical system to permit from ± 1p.u. symmetrical voltage to 2p.u.
With the displacement of 0p.u. asymmetrical voltage, and dependent on converter control action with will faulty DC transmit electricity medium in
The electric current of flowing is reduced to zero.Under these conditions, the failure between electrical system and ground is considered as high impedance fault, and
The electric current being flowed into failure is relatively small.Once detect location of fault, then can then use the control action of converter
It is zero to force the electric current in faulty DC transmissions of electricity medium, and the mechanical switch equipment for then operating such as AC breakers is connected with disconnecting
Connect faulty DC transmission paths.However, it is all conversions associated with electrical system of zero needs to force electric current in this way
The coordination of device, it is therefore desirable to which complicated and expensive communication system is to realize the performance of coordination.In addition, for some of electrical system
Topology, it may be difficult to implement this communication system.In addition, within the notable time cycle, electrical system is under twice of nominal voltage
Operation will need its all component and associated converter suitably to be evaluated to dispose twice of nominal voltage, therefore cause
Size, weight and the cost of the increase of electrical system.
It is used to reduce according to the configuration provides of the electrical system of the present invention and minimizes or avoid in foregoing alternative solution
The demand of any one DC transmission of electricity media in electric current flowing reliable fashion, therefore remove its associated inferior position.
In addition, do not need its all component and associated converter suitable according to the configuration of the electrical system of the present invention
Evaluate to dispose twice of nominal voltage on ground.
In addition, the operation that electric current reversing arrangement directly directly commutates to electric current energy absorbing element from switch element can appoint
Selection of land is carried out independently of the part for forming electrical system or the operation of the converter associated with electrical system.When being electrically in DC
When multiple alternative and/or parallel DC paths between the converter in system be present, situation is generally in this way, the DC electrical systems
Can be in the form of netted or grid system).
Or electric current is directly directly commutated to the operation of energy absorbing element and can appointed by electric current reversing arrangement from switch element
Selection of land is carried out with the part for forming electrical system or the small change of the operation of the converter associated with electrical system.Work as DC
Define for example radially connected single between the remainder in converter (or a group converter) and DC electrical systems in path
During connection, situation is generally such.
Mechanical switch is incorporated into various DC switchgears.For example, DC paths may include DC switchgears, be formed
The mechanical switch of the part of DC switchgears, and/or mechanical switch can be disconnecting switch (also known as isolator).
The configuration of electric current reversing arrangement may depend on the requirement of electrical system and change.
Optionally, in the embodiment using the purposes of mechanical switch, electric current reversing arrangement can connect company with mechanical switch
Connect.This arrangement provides the reliable fashion for the operation for coordinating electric current reversing arrangement and mechanical switch, and DC is transmitted electricity into medium from circuit
Disconnect.
In an embodiment of the present invention, switch element can be electronic switching element and/or thyristor.This enters one
Step enhances the ability of the demand of the electric current in electric assembly fast-response control DC paths.The switch element may include single
Switching device or multiple switch device, for example, switching device that is multiple being connected in series or being connected in parallel.
In the additional embodiment of the present invention, energy absorbing element may include linear resistor and/or nonlinear resistor.
The electric current that the number of linear resistor and/or nonlinear resistor in energy absorbing element may depend in DC paths it is required
Control and change, for example, the required change speed of the electric current in DC paths.
The rated value of energy absorbing element by nominal DC, the defeated dielectric resistance of DC and electric current reversing arrangement operation institute
The time needed determines.For example, the defeated dielectric resistance of 1.5kA nominal DC, 2.4 Ω DC and 100ms electric current change
The rated value of substantially 540kJ energy absorbing element will be produced to the time needed for the operation of device.In practice, energy absorption
The rated value of element can be smaller, but still in hundreds of kJ scope.
In the still further embodiment of the present invention, energy absorbing element can be connected in parallel with switch element.Energy absorption member
This of part and switch element arrangement provide the reliable fashion that electric current is directly commutated to energy absorbing element from switch element.
The component of electric assembly can change in arrangement.
In an embodiment of the present invention, electric current reversing arrangement can be connected in series with DC transmission of electricity media.Using mechanical switch
Purposes such embodiment in, electric current reversing arrangement can be used to force the electric current in DC transmission of electricity media to drop to allowance indirectly
The value that mechanical switch is safely disconnected before mechanical switch is disconnected with medium that DC transmits electricity from circuit is operated in controller, and in controller
Any oscillation of power that operation mechanical switch is decayed before medium disconnects from circuit and is present in DC paths so that DC to be transmitted electricity.
In the additional embodiment of the present invention, DC paths can further comprise being operably connected to the defeated dielectric volumes of DC
Outer DC transmissions of electricity medium.
In such embodiment using the purposes of mechanical switch, electric current reversing arrangement can connect with extra DC transmission of electricity media
Connection.In such embodiment, electric current reversing arrangement can be used to force the electric current in extra DC transmissions of electricity medium to drop to indirectly
Permit operating mechanical switch in controller so that extra DC transmission of electricity media to be safely disconnected to the value of mechanical switch before circuit disconnection, and
Any work(decayed before mechanical switch is disconnected with medium that extra DC transmits electricity from circuit and be present in DC paths is operated in controller
Rate vibrates.
In other such embodiments, DC paths can further comprise extracurrent reversing arrangement, the electric current commutation dress
Put and be connected in series respectively with DC transmission of electricity media and extra DC transmission of electricity media with extracurrent reversing arrangement.
In such embodiment using the purposes of mechanical switch, electric current reversing arrangement can be used to force DC transmissions of electricity to be situated between indirectly
Electric current in matter drops to allowance and operates mechanical switch in controller so that DC transmission of electricity media are safely disconnected into machine before circuit disconnection
The value of tool switch, and extracurrent reversing arrangement can be used to operate mechanical switch in controller so that DC transmission of electricity media to be broken from circuit
Any oscillation of power that decay is present in DC paths before opening.
In other such embodiments, extracurrent reversing arrangement can be used to force the electric current in DC transmission of electricity media indirectly
Drop to allowance and operate mechanical switch in controller so that extra DC transmission of electricity media are safely disconnected into mechanical switch before circuit disconnection
Value, and electric current reversing arrangement can be used to controller operate mechanical switch with by DC transmit electricity medium from circuit disconnect before decay deposit
In any oscillation of power in DC paths.
Therefore, electric current reversing arrangement can be independently from each other and according to its corresponding current control with extracurrent reversing arrangement
Load and optimize.
In the embodiment using the purposes of mechanical switch, two electric current reversing arrangements can be used to force in DC transmission of electricity media
Electric current drop to allowance and operate mechanical switch in controller and safely disconnect machinery before circuit disconnection with medium that DC transmits electricity and open
The value of pass, and/or two electric current reversing arrangements can be used to operate mechanical switch in controller so that DC transmission of electricity media to be broken from circuit
Any oscillation of power that decay is present in DC paths before opening.
In an embodiment of the present invention, control unit can be programmed to selectivity by switching elements ON and cut-out repeatedly with
Commutation of the control electric current directly from switch element to energy absorbing element.Repeatedly being switched on and off switch element causes DC paths
Apparent resistance in check change.This change be can perform to change the flowing of the electric current in DC paths.For example, in view of
The time-varying essence of oscillation of power, can be switched on and off switch element repeatedly with one or more power present in DC paths of decaying
Vibration.
Optionally, DC paths can further comprise current bypass mechanism, and it is arranged to the choosing of permitting current bypass path
Selecting property is formed, and current bypass path allowance electric current in use for flowing through DC paths when being formed flows through current bypass path,
And simultaneously around overcurrent reversing arrangement.This is permitted under high fault condition or when electric current reversing arrangement is faulty around electricity
Flow reversing arrangement.
According to the second aspect of the invention, there is provided a kind of electrical system, it includes：
The DC transmission paths of multiple interconnection；With
Electric assembly according to any preceding claims, a bag in the DC transmission paths of the multiple interconnection
The DC paths of the electrically assembly are included,
Wherein described control unit is programmed to selectivity and controls the switch of the switch element so that the electric current is direct
The energy absorbing element is commutated to from the switch element to increase as by described in connecting the electric current reversing arrangement
Gained voltage drop caused by the flowing of the direct current in DC paths, and thus resist the flowing of the electric current by the DC paths
So that the electric current is commutated in other DC transmission paths or other DC transmission paths at least from the DC paths
One.
The DC transmission paths of the multiple interconnection can be arranged such that by the DC transmission paths by the multiple interconnection
Described or each other persons direct current flowing caused by the voltage drop independently of the electric current reversing arrangement control with
Increase the voltage drop as obtained by caused by the flowing of the direct current as the DC paths.
This electrical system can be such as multi-terminal DC electrical networks including multiple DC terminals, DC transmission road every whereby
Footpath is connected between multiple DC terminals, or can be HVDC station.
The electrical system of the present invention may include the multiple electricity of any one in embodiment according to the first aspect of the invention
Gas assembly, each in the DC transmission paths of plurality of interconnection include corresponding in the multiple electrically DC paths of assembly
One,
The DC transmission paths of wherein the multiple interconnection are arranged such that by by each in the multiple DC paths
Direct current flowing caused by the voltage drop independently of the control of the phase induced current reversing arrangement to increase by by described
Gained voltage drop caused by the flowing of the direct current of described or each other persons in multiple DC paths.
In such embodiment, multiple electric current reversing arrangements can be operated simultaneously with control electric current between various DC paths
Redistribution.
It is subject to necessary amendment above with reference to the corresponding advantage that the first aspect of the present invention describes, suitable for the of the present invention
Two aspects.
Brief description of the drawings
Accompanying drawing is referred now to by means of non-limiting examples to describe the preferred embodiments of the present invention, in the accompanying drawings：
Fig. 1 schematically shows the electrical system in the form of DC power networks according to the first embodiment of the present invention；
Fig. 2 schematically shows the electric assembly according to the second embodiment of the present invention of the part of the DC power networks in Fig. 1；
And
Fig. 3 schematically shows the electrical system in HVDC power transmission terminal forms according to the third embodiment of the invention.
Embodiment
It is shown in Figure 1 according to the electrical system in the form of DC power networks of the first embodiment of the present invention, and generally by joining
Numeral 200 is examined to indicate.
DC power networks 200 include multiple DC terminals 202, and multiple DC power transmission lines 204a, 204b, 204c.In use, it is each
DC terminals 202 are operatively connectable to the DC sides of corresponding AC-DC converter 206, and the DC sides are connected to the corresponding electric nets of AC
Network 208,209.
In the embodiment shown in fig. 1, the first DC power transmission lines 204a is arranged to interconnect the first DC terminals 202 and second
DC terminals 202, the 2nd DC power transmission lines 204b are arranged to interconnect the first DC terminals 202 and the 3rd DC terminal (not shown), and the
Three DC power transmission lines 204c are arranged to interconnect the 2nd DC terminals 202 and the 4th DC terminal (not shown).
Every a DC power transmission lines 204a, 204b, 204c every one end are connected in series with corresponding disconnecting switch 210.In use,
Operable each disconnecting switch 210 disconnects, at the electric current flowed in corresponding DC power transmission lines 204a, 204b, 204c
In zero or generally zero current threshold, that is, when permitting safely disconnecting the value of each disconnecting switch 210, selectivity stops that electric current exists
Flowed in corresponding DC power transmission lines 204a, 204b, 204c.
Every DC power transmission lines 204a, 204b, 204c and corresponding disconnecting switch 210 it is each be connected in series further with phase
The electric current reversing arrangement 212 answered is connected in series, for defining respective electric assembly.
As shown in Figure 2, each electric current reversing arrangement 212 includes the switch member being connected in parallel with energy absorbing element 216
Part 214.Switch element 214 includes the switch dress of a pair of differential concatenations connection in the form of igbt (IGBT)
Put, be connected by every IGBT with antiparallel diodes in parallel.Energy absorbing element 216 includes surge arrester, for example, oxygen
Change zinc surge arrester.
Contemplate in other embodiments of the invention, the number alterable of the switching device in each switch element 214,
And/or the number alterable of the energy absorbing element 216 in each electric current reversing arrangement 212.It is further contemplated that the present invention's
In still other embodiments, switch element 214 is replaceable or comprises additionally in different switching devices, such as IGBT, IGCT, GTO, other
Self-commutation switching device etc., and/or energy absorbing element 216 can replace or comprise additionally in another type of nonlinear resistance
Device and/or linear resistor.
Each electrically assembly further comprises corresponding controller 218, and it is configured to keep apart corresponding to selectivity operation
210 are closed to disconnect corresponding DC power transmission lines 204.Each controller 218 can be programmable to keep apart corresponding to operation
210 are closed, or disconnecting switch 210 corresponding to mechanically actuated can be configured to.
Each electrically assembly further comprises control unit 220, and it is programmed to opening for selective controlling switch element 214
Close, i.e. be selectively turned on and turn off switch element 214.
It is also acknowledged that some or all of controller 218 and control unit 220 can be separated from each other.Will be further
Understand, some or all of controller 218 and control unit can be formed integral with one another 220.
In the normal operation period, DC power networks 200 are to transmit electric power, for example, via converter 206 and DC power transmission lines
204a, 204b, 204c are from the ashore AC systems 209 of marine wind electric field 208.During this normal operating, electric current flows through every DC
Power transmission line 204a, 204b, 204c, and therefore also flow through each disconnecting switch 210 and each electric current reversing arrangement 212.More specifically
Ground is said, when electric current flows through given electric current reversing arrangement 212, switch element 214 is connected in parallel meaning with energy absorbing element 216
Taste the resistance for when switch element 214 is connected, being attributed to energy absorbing element 216, and electric current preferentially flows through switch element 214.
Failure or other upset operation situations may occur in which in DC power networks 200.For example, the DC of DC power networks 200 is defeated
One in electric wire 204a, 204b, 204c can undergo limit to ground failure (pole-to-ground fault).Failure or its
The presence of its upset operation situation can cause high fault current in faulty DC power transmission lines 204a, 204b, 204c and by
High fault current in this caused DC power network 200.
In order to illustrate the purpose of the mode of the invention to work, it is assumed that the first DC power transmission lines 204a is that faulty DC transmits electricity
Line, it should be appreciated that the following description of work of the invention is subject to necessary modification, and other DC power transmission lines are appeared in suitable for failure
In any one in 204b, 204c.
In the first example of the work of the present invention, the first DC power transmission lines 204a, corresponding disconnecting switch 210 and corresponding
Electric current reversing arrangement 212 defines DC paths together.
After being broken down in the first DC power transmission lines 204a, the switch of the controlling switch element 214 of control unit 220 is with disconnected
Open, and electric current is directly thus commutated into energy absorbing element 216 from switch element 214.Flow through directly from switch element 214 to
The commutation of the electric current in the DC paths of energy absorbing element 216, can cause as obtained by caused by the flowing of the direct current as DC paths
Voltage drop and the flowing therefore with the electric current in resistance DC paths, and thus make its completely or partially in DC power networks 200 its
Flowed at it, i.e., the DC paths that electric current is re-directed to other DC power transmission lines 204b, 204c effect completely or partially regard
In the increase of resistance.In this example, the resistance of energy absorbing element 216 is suitably evaluated to force the first DC defeated indirectly
Electric current in electric wire 204a drops to allowance in the disconnecting switch operation 210 of controller 218 to disconnect the first DC power transmission lines
The value of disconnecting switch 210 is safely disconnected before 204a.In the case, desired value is zero or substantially zero.
Meanwhile the first failure in DC power transmission lines 204a can cause the generation of the oscillation of power in DC paths.In addition or or
Person, the oscillation of power in DC paths can be by converter 206 or AC electrical networks 208,209 or by other in DC power networks 200
One or more failures that place occurs cause.Therefore, as the inductance in DC paths and the result of electric capacity, direct current adds one or more
Oscillating component will flow in DC paths.Although oscillation of power will decay with the time naturally, this decay can spend quite big
The time of amount is to hinder disconnecting switch 210 safely to disconnect to disconnect the ability of the first DC power transmission lines 204.
In view of the time-varying essence of oscillation of power, control unit can be by specific frequency (its can scope from several Hz to several kHz)
Switch element is optionally turned on and off more than 214 times with control electric current directly from switch element 214 to energy absorbing element 216
Commutate to be present in DC paths in the disconnecting switch operation 210 of controller 218 to disconnect decay before the first DC power transmission lines 204a
In oscillation of power.By specific frequency repeatedly turn on and off switch element 214 cause DC paths apparent resistance it is controlled
The change of system, the in check apparent resistance of alterable is to change the flowing of the electric current in DC paths whereby.
It can carry out repeatedly turning on and off switch element 214 with the pulse width modulation under such as 500Hz frequency.
When the fault current in the first DC power transmission lines 204a is reduced to zero or generally zero desired value, controller 218
The disconnecting switch 210 connected at the first DC power transmission lines 204a both ends is operated with disconnection, and thus stops electric current faulty
Flowed in first DC power transmission lines 204a.
Meanwhile the remainder in DC power networks 200 can continue its normal service in the case of unbroken.
Realize electric current from switch element 214 to the direct of energy absorbing element 216 by configuring electric current reversing arrangement 212
Commutation, the demand for the electric current that electric assembly can be in fast-response control DC paths.This reduces to disconnect the first DC defeated again
Time delay during electric wire 204a.
The not only allowance that includes of switch element 214 in electric assembly uses relatively small and inexpensive switch element 214,
And when compared with the total losses in DC power networks 200, cause the insignificant loss in electric current reversing arrangement 212.
, can be by being changed corresponding to another DC power transmission lines 204b, 204c electric current in the second example of the work of the present invention
Safely disconnected to the operation of device 212 to permit the disconnecting switch 210 connected at the first DC power transmission lines 204a both ends,
In shown embodiment, another DC power transmission lines can be the 2nd DC power transmission lines 204b or the 3rd DC power transmission lines 204c.It is real herein
In example, the first DC power transmission lines 204a, another DC power transmission lines 204b, 204c, corresponding disconnecting switch 210 and the commutation of corresponding electric current
Device 212 defines DC paths together.
Work of the invention in the second example is equal to the work of the invention in the first example, except corresponding to
The operation of first DC power transmission lines 204a electric current reversing arrangement 212 corresponding to another DC power transmission lines 204b, 204c electric current by changing
Outside operation to device 212 replaces.Although this still results in the voltage as obtained by caused by the flowing of the direct current as DC paths
Drop and therefore have the effect for the flowing for resisting the electric current in DC paths and thus make what its other place in DC power networks 200 was flowed
The increase of the apparent resistance in DC paths, but the resistance of energy absorbing element 216 suitably evaluated with indirectly (such as with direct phase
It is right) force the electric current in the first DC power transmission lines 204a to drop to allowance in the disconnecting switch operation 210 of controller 218 to disconnect
The value of the disconnecting switch 210 corresponding to the first DC power transmission lines 204a is safely disconnected before first DC power transmission lines 204a.Operable correspondence
In another DC power transmission lines 204b, 204c electric current reversing arrangement 212 with increase as caused by the flowing of the direct current by DC paths
Gained voltage drop and the therefore apparent resistance in DC paths, to disconnect first in the disconnecting switch operation 210 of controller 218
Decay the oscillation of power being present in DC paths before DC power transmission lines 204a.
, can be by corresponding to the first DC power transmission lines 204a and another DC power transmission lines in the 3rd example of the work of the present invention
204b, 204c two electric current reversing arrangements 212 operation come permit at the first DC power transmission lines 204a both ends connect every
Pass 210 is left safely to disconnect.In this example, the first DC power transmission lines 204a, another DC power transmission lines 204b, 204c, corresponding
Disconnecting switch 210 and corresponding electric current reversing arrangement 212 define DC paths together.
In this example, corresponding to the first DC power transmission lines 204a electric current reversing arrangement 212 operation by corresponding to another
The operation supplement of DC power transmission lines 204b, 204c electric current reversing arrangement 212.
The operable electric current reversing arrangement 212 for corresponding to the first DC power transmission lines 204a to force the first DC power transmission lines indirectly
Electric current in 204a drops to allowance before the disconnecting switch operation 210 of controller 218 is to disconnect the first DC power transmission lines 204a
The value of the disconnecting switch 210 corresponding to the first DC power transmission lines 204a is safely disconnected, it is simultaneously operable to correspond to another DC power transmission lines
204b, 204c electric current reversing arrangement 212 with increase as obtained by caused by the flowing of the direct current as DC paths voltage drop and because
The apparent resistance in this DC path, before in the disconnecting switch operation 210 of controller 218 to disconnect the first DC power transmission lines 204a
Decay the oscillation of power being present in DC paths.
Or the operable electric current reversing arrangement 212 corresponding to another DC power transmission lines 204b, 204c to force first indirectly
Electric current in DC power transmission lines 204a drops to allowance in the disconnecting switch operation 210 of controller 218 to disconnect the first DC transmissions of electricity
The value of the disconnecting switch 210 corresponding to the first DC power transmission lines 204a is safely disconnected before line 204a, it is simultaneously operable to correspond to first
DC power transmission lines 204a electric current reversing arrangement 212 with increase as caused by the flowing of the direct current as DC paths obtained by voltage drop with
Therefore the apparent resistance in DC paths, to disconnect the first DC power transmission lines 204 in the disconnecting switch operation 210 of controller 218
The preceding oscillation of power being present in DC paths that decays.
Further or, operable two electric current reversing arrangements 212 are to force under the electric current in the first DC power transmission lines 204a
Allowance is dropped in the disconnecting switch operation 210 of controller 218 to disconnect to safely disconnect before the first DC power transmission lines 204a to correspond to
The value of first DC power transmission lines 204a disconnecting switch 210, and/or operable two electric current reversing arrangements 212 with increase by passing through
Gained voltage drop caused by the flowing of the direct current in DC paths and the therefore apparent resistance in DC paths, to be operated in controller 218
Disconnecting switch 210 is to disconnect the oscillation of power for decaying before the first DC power transmission lines 204a and being present in DC paths.
Disconnecting given DC power transmission lines 204a, 204b, 204c requirement can also cause in the case of non-faulting, non-faulting
Situation may include for example to safeguard for the DC power transmission lines of transmission security reason or the operational circumstances of isolation.
According to the third embodiment of the invention the electrical system in the form of HVDC station is shown in Figure 3, and substantially by joining
Numeral 300 is examined to indicate.
Fig. 3 shows the line chart of HVDC station, and it includes the first pole 302, the second pole 304, electrode wires 306 and is connected to first
Switch valve 308 between pole 302 and electrode wires 306.
HVDC station 300 includes multiple DC paths, and each includes being connected to the defeated dielectric corresponding DC switches of DC
Equipment 310.The multiple DC switchgears 310 include：
● multiple by-pass switches 312, one corresponding in switch valve 308 of each are connected in parallel；
● the neutral bus switch 314 being connected between switch valve 308 and electrode wires 306；
● the neutral bus earthed switch 316 being connected between electrode wires 306 and ground；
● the metal connected in electrode wires 306 returns to changer 318；With
● it is connected to the return switching of the ground between the midpoint between the pole 302 of electrode wires 306 and first and the second pole 304 and opens
Close 320.
Every DC switchgears 310 are equal in structure with the arrangement shown in Fig. 2, each of which DC switchgears 310
Including the mechanical switch being connected in series with electric current reversing arrangement 212, wherein mechanical switch is in the form of disconnecting switch 210.Contemplate,
In other embodiments of the invention, disconnecting switch 210 can be replaced by another type of mechanical switch.
In use, the electric current flowed in medium is transmitted electricity in corresponding DC is in zero or generally zero current threshold
When (that is, the value disconnected without arc for permitting each disconnecting switch 210), it can be connected by disconnecting switch corresponding to operation 210 with disconnecting
DC transmission of electricity media corresponding to connecing stop that electric current is situated between in corresponding DC transmissions of electricity to operate every DC switchgears 310 and disconnect with selectivity
Flowed in matter.
Every DC switchgears 310 define corresponding electric assembly with the defeated dielectric connections of corresponding DC.
Each electrically assembly further comprises corresponding controller 218, and it is configured to isolate corresponding to selectivity operation
210 are switched to disconnect corresponding DC transmissions of electricity medium.Each controller 218 is configured to disconnecting switch corresponding to mechanically actuated
210.Each electrically assembly further comprises control unit 220, and it is programmed to the switch of selective controlling switch element 214,
That is, it is selectively turned on and turns off switch element 214.
During the operation of HVDC station 300, when corresponding DC switchgears 310 close, direct current flows through every DC paths.
Electric current flows through the DC switchgears 310 and corresponding DC transmission of electricity media of closure, and therefore also flows through the corresponding He of disconnecting switch 210
Electric current reversing arrangement 212.Similar to the first embodiment of the present invention, when electric current flows through given electric current reversing arrangement 212, switch
Element 214 is in parallel with energy absorbing element 216 to be meaned, when ON switch element 214, to be attributed to energy absorbing element 216
Resistance, electric current preferentially flows through switch element 214.
Given closed DC switchgear 310 may be needed to disconnect with by direct current reversing, as the part of its normal load, this
It can cause in the case of failure or non-faulting.
The disconnection of given closed DC switchgear 310 described below is with by direct current reversing.
At the beginning, the switch of the controlling switch element 214 of control unit 220 with disconnect and thus by electric current directly from switch member
Part 214 commutates to energy absorbing element 216.The electric current in DC paths is flowed through directly from switch element 214 to energy absorbing element 216
Commutation cause as obtained by caused by the flowing of the direct current as DC paths voltage drop and therefore with the electricity in resistance DC paths
Stream flows and thus makes its apparent resistance in the DC paths of the effect of other places' flowings in HVDC station 300 completely or partially
Increase.In this example, the resistance of energy absorbing element 216 is suitably evaluated to force corresponding DC transmissions of electricity medium indirectly
In electric current drop to allowance before the disconnecting switch operation 210 of controller 218 is with DC transmissions of electricity medium corresponding to disconnecting without arc
The value of disconnecting switch 210 corresponding to disconnection.In the case, desired value is zero or substantially zero.
When the electric current during corresponding DC transmits electricity medium is reduced to zero or generally zero desired value, controller 218 operates
Disconnecting switch 210 under without arc condition to disconnect, and therefore stops that electric current flows in corresponding DC transmits electricity medium, therefore effectively
Ground disconnects corresponding DC transmissions of electricity medium.The disconnection of disconnecting switch 210 also provides the height between the terminal of DC switchgears 310
Degree insulation.
Due to not needing every DC switchgears 310 to flow through its direct current as breaker operator to destroy, but only need
Will its direct current is commutated to from other in HVDC station 300 from corresponding DC paths, therefore when the nominal voltage with HVDC station 300
When rated value is compared, electric current is attributed to directly from switch element 214 to the gained voltage drop of the commutation of energy absorbing element 216
Increase relatively low.The rated voltage of switch element 214 can be configured as relatively small, and can use low number switching device or single
Two-way switch device is reached.
No arc that includes not only permitting of electric current reversing arrangement 212 in each electrically assembly disconnects every DC switchgears
310 mechanical switch, and permit using relatively small and inexpensive switch element 214.
In addition, the protection switch element 214 of energy absorbing element 216 during the operation of DC switchgears 310 from can draw
The due to voltage spikes risen.
It will be appreciated that, the control of given electric current reversing arrangement 212 with the electric current in DC paths corresponding to flowing through directly from switch
Element 214, which commutates to energy absorbing element 216, has electricity of the resistance only in the DC paths of the given electric current reversing arrangement 212 of connection
The effect of the flowing of stream.In other words, multiple DC paths are arranged such that by by each in the multiple DC paths
Voltage drop caused by the flowing of direct current is independently of the control of phase induced current reversing arrangement 212 to increase by by the multiple DC roads
Gained voltage drop caused by the flowing of the direct current of each other persons in footpath.
Contemplate, in other embodiments, every a DC power transmission lines 204a, 204b, 204c can by but be not limited to the following generation
Replace：Seabed DC power transmission cables, aerial DC power transmission cables, underground DC power transmission cables pass between two or more electrical equipments
Any DC transmission of electricity media for power of transmitting electricity.
It will be appreciated that, the topological sum configuration of electrical system, electric assembly and electric current reversing arrangement 212 is only chosen so as to explanation originally
The work of invention, and present invention can be suitably applied to other topological sums configuration of electrical system, electric assembly and electric current reversing arrangement.
Claims (19)
1. a kind of electric assembly, for being used in electrical system, the electrically assembly includes DC paths, the DC paths bag
Include：
DC transmission of electricity media；And
Electric current reversing arrangement, the electric current reversing arrangement include switch element and energy absorbing element, and the switch element is by cloth
Put and flow through the switch element to permit flowing through the electric current in the DC paths in use, and simultaneously around energy absorption member
Part,
Wherein described electrically assembly further comprises control unit, the switch of the switch element is controlled for selectivity, by institute
State electric current and directly commutate to the energy absorbing element from the switch element, to increase by being commutated by connecting the electric current
Gained voltage drop caused by the flowing of the direct current in the DC paths of device, and thus resist the electric current and pass through the DC paths
The flowing.
2. electric assembly according to claim 1, wherein, the electric current reversing arrangement is configured to have rated voltage,
The rated voltage enables the energy absorbing element to increase by the DC paths by connecting the electric current reversing arrangement
Direct current the flowing caused by the gained voltage drop, and thus resist the stream of the electric current by the DC paths
It is dynamic.
3. electric assembly according to any one of the preceding claims, wherein, the DC paths further comprise：
Mechanical switch, the mechanical switch are connected to the DC transmissions of electricity medium；And
Controller, the controller are configured to selectivity and operate the mechanical switch, and DC transmission of electricity media are disconnected from circuit,
Wherein described control unit is used for the switch that selectivity controls the switch element, by the electric current directly from described
Switch element commutates to the energy absorbing element, thus forces the electric current in the DC transmissions of electricity medium to drop to allowance and exists
The controller operates the mechanical switch and safely disconnects the mechanical switch so that the DC to be transmitted electricity before medium disconnects from circuit
Value.
4. electric assembly according to claim 3, wherein, described control unit is used for selectivity and controls the switch element
The switch, the electric current is directly commutated into the energy absorbing element from the switch element, thus forces the DC
The electric current in transmission of electricity medium drop to allowance the controller operate the mechanical switch by the DC transmit electricity medium from
Circuit disconnects the value of the mechanical switch without arc before disconnecting.
5. according to the electric assembly described in claim 3 or claim 4, wherein, described control unit is used for selectivity and controlled
The switch of the switch element, the electric current is directly commutated into the energy absorbing element from the switch element, by
This operates to decay before the mechanical switch is disconnected with medium that the DC transmits electricity from circuit in the controller is present in the DC
Any oscillation of power in path.
6. the electric assembly according to any claim in claim 3 to 5, wherein, the DC paths switch including DC
Equipment, the mechanical switch form the part of the DC switchgears, and/or wherein described mechanical switch is disconnecting switch.
7. the electric assembly according to any claim in claim 3 to 6, wherein, the electric current reversing arrangement and institute
Mechanical switch is stated to be connected in series.
8. electric assembly according to any one of the preceding claims, wherein, the switch element is electronic cutting
Close element and/or thyristor.
9. electric assembly according to any one of the preceding claims, wherein, the energy absorbing element includes
Linear resistor and/or nonlinear resistor, and/or wherein described energy absorbing element are connected in parallel with the switch element.
10. electric assembly according to any one of the preceding claims, wherein, the electric current reversing arrangement and institute
DC transmission of electricity media are stated to be connected in series.
11. electric assembly according to any one of the preceding claims, wherein, the DC paths also include grasping
It is connected to the defeated dielectric extra DC transmissions of electricity media of the DC with making.
12. electric assembly according to claim 11, wherein, the electric current reversing arrangement and the extra DC transmissions of electricity medium
It is connected in series, or wherein described DC paths also include extracurrent reversing arrangement, the electric current reversing arrangement and the additional electric
Stream reversing arrangement is connected in series with DC transmission of electricity media and the extra DC transmissions of electricity medium respectively.
13. electric assembly according to any one of the preceding claims, wherein, described control unit is used to select
Property the switching elements ON and cut-out is multiple, to control the electric current directly from the switch element to the energy absorption
The commutation of element.
14. electric assembly according to any one of the preceding claims, wherein, the DC paths further comprise
The selectively formed current bypass mechanism of permitting current bypass path is arranged to, and the current bypass path is when forming
The electric current for permitting flowing through the DC paths in use flows through the current bypass path, and simultaneously around electric current commutation dress
Put.
15. a kind of electrical system, including：
The DC transmission paths of multiple interconnection；And
Electric assembly according to any preceding claims, one in the DC transmission paths of the multiple interconnection includes institute
The DC paths of electric assembly are stated,
Wherein described control unit is used for the switch that selectivity controls the switch element, by the electric current directly from the switch
Element commutates to the energy absorbing element, to increase by the straight of the DC paths by connecting the electric current reversing arrangement
Gained voltage drop caused by the flowing of stream, and the flowing of the electric current by the DC paths is thus resisted, by described in
Electric current commutates at least one in other DC transmission paths or other DC transmission paths from the DC paths.
16. electrical system according to claim 15, wherein, the DC transmission paths of the multiple interconnection are arranged such that
As described in the DC transmission paths by the multiple interconnection or described in caused by the flowing of the direct current of each other persons
Voltage drop is caused independently of the control of the electric current reversing arrangement with increase by the flowing of the direct current by the DC paths
Gained voltage drop.
17. electrical system according to claim 16, wherein, including will according to any one of claim 1 to 14 right
Described multiple electric assemblies are sought, wherein each in the DC transmission paths of the multiple interconnection is including the multiple electrically total
Into the DC paths in corresponding one,
The DC transmission paths of wherein the multiple interconnection are arranged such that by by each in the multiple DC paths
The voltage drop caused by the flowing of direct current independently of the phase induced current reversing arrangement the control, with increase by leading to
The gained voltage drop caused by the flowing of the direct current of the described or each other persons crossed in the multiple DC paths.
It is 18. a kind of generally as described by the present invention referring to accompanying drawing and/or such as electric assembly illustrated in the accompanying drawing.
It is 19. a kind of generally as described by the present invention referring to accompanying drawing and/or such as electrical system illustrated in the accompanying drawing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1513402.6A GB2540813A (en) | 2015-07-30 | 2015-07-30 | Electrical assembly |
| GB1513402.6 | 2015-07-30 | ||
| PCT/EP2016/068111 WO2017017240A1 (en) | 2015-07-30 | 2016-07-28 | Electrical assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107851528A true CN107851528A (en) | 2018-03-27 |
| CN107851528B CN107851528B (en) | 2020-06-05 |
Family
ID=54062875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680044379.3A Active CN107851528B (en) | 2015-07-30 | 2016-07-28 | Electrical assembly |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10333313B2 (en) |
| EP (1) | EP3329506B1 (en) |
| CN (1) | CN107851528B (en) |
| BR (1) | BR112018001842A2 (en) |
| CA (1) | CA2992962A1 (en) |
| GB (1) | GB2540813A (en) |
| WO (1) | WO2017017240A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2540813A (en) | 2015-07-30 | 2017-02-01 | General Electric Technology Gmbh | Electrical assembly |
| GB2557348B (en) | 2016-12-08 | 2020-09-30 | Ge Aviat Systems Ltd | Power distribution system including a commutation device |
| EP4311062A1 (en) * | 2022-07-20 | 2024-01-24 | General Electric Technology GmbH | Improvements in or relating to power transmission networks |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150002977A1 (en) * | 2011-12-23 | 2015-01-01 | Alstom Technology Ltd | Mechatronic Circuit Breaker Device And Associated Tripping Method And Use Thereof In Interrupting A High Direct Current |
| CN104620345A (en) * | 2012-08-27 | 2015-05-13 | Abb技术有限公司 | Apparatus arranged to break an electrical current |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012055447A1 (en) * | 2010-10-29 | 2012-05-03 | Abb Technology Ag | Voltage balancing of symmetric hvdc monopole transmission lines after earth faults |
| EP2523204B1 (en) * | 2011-05-12 | 2019-09-04 | ABB Schweiz AG | Circuit arrangement and method for interrupting a current flow in a DC current path |
| EP2820756A1 (en) * | 2012-03-01 | 2015-01-07 | ALSTOM Technology Ltd | High voltage dc circuit breaker apparatus |
| EP2670013B1 (en) | 2012-06-01 | 2016-09-21 | General Electric Technology GmbH | Current flow controller |
| GB201308051D0 (en) | 2013-05-03 | 2013-06-12 | Univ Manchester | Apparatus and method for controlling a DC current |
| GB2519791B (en) * | 2013-10-30 | 2016-10-05 | Alstom Technology Ltd | Breaker circuit |
| WO2015078525A1 (en) * | 2013-11-29 | 2015-06-04 | Siemens Aktiengesellschaft | Device and method for switching a direct current |
| EP3032677B1 (en) | 2014-12-12 | 2021-05-05 | General Electric Technology GmbH | DC electrical network |
| GB2540813A (en) | 2015-07-30 | 2017-02-01 | General Electric Technology Gmbh | Electrical assembly |
-
2015
- 2015-07-30 GB GB1513402.6A patent/GB2540813A/en not_active Withdrawn
-
2016
- 2016-07-28 EP EP16744781.2A patent/EP3329506B1/en active Active
- 2016-07-28 CN CN201680044379.3A patent/CN107851528B/en active Active
- 2016-07-28 BR BR112018001842-2A patent/BR112018001842A2/en not_active Application Discontinuation
- 2016-07-28 WO PCT/EP2016/068111 patent/WO2017017240A1/en active Application Filing
- 2016-07-28 US US15/748,717 patent/US10333313B2/en active Active
- 2016-07-28 CA CA2992962A patent/CA2992962A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150002977A1 (en) * | 2011-12-23 | 2015-01-01 | Alstom Technology Ltd | Mechatronic Circuit Breaker Device And Associated Tripping Method And Use Thereof In Interrupting A High Direct Current |
| CN104620345A (en) * | 2012-08-27 | 2015-05-13 | Abb技术有限公司 | Apparatus arranged to break an electrical current |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201513402D0 (en) | 2015-09-16 |
| EP3329506B1 (en) | 2021-08-25 |
| GB2540813A (en) | 2017-02-01 |
| CN107851528B (en) | 2020-06-05 |
| US20190013674A1 (en) | 2019-01-10 |
| WO2017017240A1 (en) | 2017-02-02 |
| US10333313B2 (en) | 2019-06-25 |
| BR112018001842A2 (en) | 2018-09-18 |
| EP3329506A1 (en) | 2018-06-06 |
| CA2992962A1 (en) | 2017-02-02 |
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